Dry matter production and efficiency in various types of plant canopies
1983
Kira, T. (Osaka City Univ. (Japan). Department of Biology) | Kumura, A. (University of Tokyo (Japan). Department of Agronomy)
Different types of plant canopy are compared with respect to their dry matter productivity with an emphasis on forest canopies. Properties such as the type of photosynthetic metabolism, rate of net photosynthesis in leaves evergreeness and stand age are considered. Limited available data suggest that forest communities tend to have not only a larger leaf area index but a higher efficiency of solar energy conversion to gross production than natural herbaceous communities. C4 crops however tend to have much higher efficiencies for both net and gross production. The poverty of existing knowledge about the characteristics and the performance of mixed multispecies canopies needs to be remedied if agroforestry systems are to be designed and managed optimally. This paper is a tentative review of the comparative productivity of different plant canopies based on the limited available information
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